Foot stool



FIG. 1 shows a perspective view of a foot stool showing my new design.

FIG. 2 shows a front view of the foot stool of FIG. 1, the rear view being the same.

FIG. 3 shows a right side view of the foot stool of FIG. 1, the left side view being the same; and,

FIG. 4 shows a top view of the foot stool of FIG. 1. 

The ornamental design for a foot stool, as shown and described. 